Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio crassatellus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 286, 356.
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 136 [30].
Bourguignat in Locard, 1893, Coqu. Eau Douce Saumâtre France: 162.
Type(s): LECTOTYPE MNHN_22182, La Canne, à Jailly (Nièvre).
= Unio crassus Taxonomic Opinions
+ Unio crassus Philipsson in Retzius, 1788 — Lopes-Lima et al., 2024
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1969
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1940
+ Unio crassus Philippson — Germain, 1931
- OMITTED — Simpson, 1914
= Unio crassatellus Bgt. in Locard — Rochebrune, 1903
= Unio (Groupe de l’U. feliciani) crassatellus Bourguignat — Locard, 1893
- NO OPINION — Westerlund, 1890
= Unio (Crassiana) crassatellus Bourguignat in Locard — Locard, 1889
= Unio (Groupe de l’U. crassus) crassatellus Bourguignat, 1881, Mss. — Locard, 1882
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